I am highly expressive and have little filter. I think my upbringing allowed this or even encouraged it. The meta message in every movie I ever watched as a kid was “if you just look deep inside yourself and bring out the essence of what’s there, you can do / win / be anything!” I’m also male, and my family laughed a lot and yelled a lot and angered easily and forgave easily. As a result, I’m quite outspoken and some find me bombastic or overbearing.

It’s quite hard to put this genie back in the bottle once you’re an adult. If you’re like this and wondering how other people contain it, the likelihood is that they have been conditioned to contain it their entire lives. In some cases longer than that: In Chinese culture, for example, no one has is permitted to be emotionally demonstrative and this has been the norm for thousands of years. It might even have been selected for genetically over time: outspoken peasants executed, expressive daughters disowned…

I will say this though. As you grow older your vision and hearing get worse and your feelings become less sensitive. I can hold a hot object that my kids can’t even touch with one finger. Emotionally, it’s a bit the same. Reactions come slower, and are not as strong. And the muscles in the face don’t react as much, and the heart is less inclined to engage in a full flameout over something trivial. So it gets easier.